I have using this Shark Air purifier nonstop since I received it! I needed something for our spare bedroom that has our cats litter box in the bathroom shower. This air purifier really helps to keep any kind of gross smell gone! The room smells fresh and clean and I can tell that it’s actually doing its job! I’m so excited that I no longer have a house that smells like a cat when you walk towards the back area. This was always a huge issue for me and I was very embarrassed about it. I’ve tried numerous different litters and nothing just seems to work. But this thing is a trick!